<?php

/**
 * @file
 * Contains the user from URL argument default plugin.
 */

/**
 * Default argument plugin to extract a user via menu_get_object
 */
class views_plugin_argument_default_user extends views_plugin_argument_default {

    var $option_name = 'default_argument_user';

    function argument_form(&$form, &$form_state) {
        $form[$this->option_name] = array(
            '#type' => 'checkbox',
            '#title' => t('Also look for a node and use the node author'),
            '#default_value' => !empty($this->argument->options[$this->option_name]),
            '#process' => array('views_process_dependency'),
            '#dependency' => array(
                'radio:options[default_action]' => array('default'),
                'radio:options[default_argument_type]' => array($this->id)
            ),
            '#dependency_count' => 2,
        );
    }

    function get_argument() {
        foreach (range(1, 3) as $i) {
            $user = menu_get_object('user', $i);
            if (!empty($user)) {
                return $user->uid;
            }
        }

        foreach (range(1, 3) as $i) {
            $user = menu_get_object('user_uid_optional', $i);
            if (!empty($user)) {
                return $user->uid;
            }
        }

        if (!empty($this->argument->options[$this->option_name])) {
            foreach (range(1, 3) as $i) {
                $node = menu_get_object('node', $i);
                if (!empty($node)) {
                    return $node->uid;
                }
            }
        }

        if (arg(0) == 'user' && is_numeric(arg(1))) {
            return arg(1);
        }

        if (!empty($this->argument->options[$this->option_name])) {
            if (arg(0) == 'node' && is_numeric(arg(1))) {
                $node = node_load(arg(1));
                if ($node) {
                    return $node->uid;
                }
            }
        }

        // If the current page is a view that takes uid as an argument, return the uid.
        $views_page = views_get_page_view();

        if ($views_page && isset($views_page->view->argument['uid'])) {
            return $views_page->view->argument['uid']->argument;
        }
    }

}

